Grand.theft.auto.epizodes.from.liberty.city.par...

Are you seeing a specific (like "Unexpected end of archive") when trying to extract these files?

: Go back to the original site or folder where you got the files. Archive parts are specifically indexed to work together; a part from a different "repack" or version will not work. Grand.Theft.Auto.Epizodes.From.Liberty.City.par...

: Rockstar Games combined GTA IV and Episodes from Liberty City into one launcher on Steam and the Rockstar Games Launcher . Are you seeing a specific (like "Unexpected end

If your files are incomplete or corrupted, it may be easier to use modern official versions that handle installation automatically: : Rockstar Games combined GTA IV and Episodes

: Look at your file list. If you have part01 through part10 but are missing part05 , you specifically need that exact file.

: All parts (except usually the very last one) should be the exact same size. If one is smaller, it is likely a corrupted download.